Direct path establishment method, server apparatus, the caller network node apparatus, direct path established network, and, these programs

摘要

PROBLEM TO BE SOLVED: To provide a direct path establishment technique for enabling a user node device to establish a direct path after recognizing the state of a network resource on the base of the state of a reservation path in response to an on-demand resource request.;SOLUTION: The server device 3 includes: a resource managing means 301 for managing resources of a network 1; a route calculating means 302 for calculating a path route for housing or passing through the direct path 60; a direct resource setting request answering means 303 for transmitting a setting request for a path route; a path information storing means 304; a path establishment/completion notification receiving means 305 for receiving a message showing that the establishment of the direct path is completed; a path information updating means 306; and a DB (database) 307.;COPYRIGHT: (C)2010,JPO&INPIT